华阳集团：关于全资子公司完成工商变更登记的公告

Group 1 - The core point of the article is that Huayang Group's wholly-owned subsidiaries, Huayang General and Huayang Multimedia, have completed business registration changes, expanding their operational scope to include "information consulting services (excluding licensed information consulting services)" [1] - The subsidiaries have obtained a new business license from the Market Supervision Administration of Huizhou Zhongkai High-tech Zone, while other registration details remain unchanged [1] - The companies previously focused on manufacturing and sales in areas such as smart vehicle-mounted systems, audio equipment, and instruments [1]